another version of frequency formula

To: tesla-at-grendel.objinc-dot-com
Subject: another version of frequency formula
From: EDHARRIS-at-MPS.OHIO-STATE.EDU
Date: Mon, 15 Jan 1996 16:26:22 -0500 (EST)
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The formula I previously posted for the resonant frequency of an "unloaded" 
helix can be cast in a slightly different form which is similar to the form 
Mark B posted:
        c
F = ---------------------
     4x length of winding


The above formula does not take into account the coiling of the wire. 
Written in similar terms to the above, the formula I posted becomes:

	  c                                 (1/5)
F = ------------------------ x (5/4) x (H/D)
     4 x length of winding


c=speed of light
H=height of coil
D=diameter of coil

Nothing special. Just highlights the difference due to coiling the wire. 
For an H/D=10, the two forms differ only by a factor of 2.


SOrry to beat a dead horse.
-Ed Harris